Patent MX-357812-B (MX)
Title: Method, device and system for refreshing dynamic random access memory (dram).
Inventor: ZEHAN CUI
IPC: G11C11/406
Filed: 2015-06-08
Abstract: A method, device and system for refreshing a dynamic random access memory (DRAM). The method comprises: acquiring an address of a refreshing unit in a DRAM and refreshing information of the refreshing unit, the refreshing unit being a storage space used for implementing refreshing once in the DRAM, and the refreshing information of the refreshing unit comprising a refreshing cycle of the refreshing unit; and encapsulating the address of the refreshing unit and the refreshing information of the refreshing unit into a DRAM access request, and writing the address of the refreshing unit and the refreshing information of the refreshing unit into a refreshing data space (310) through the DRAM access request, the refreshing data space (310) being a storage space preset in the DRAM and used for storing the address of at least one refreshing unit in the DRAM and the refreshing information of the at least one refreshing unit. By means of the solution, specified refreshing can be implemented according to the refreshing information of the refreshing unit, so the problem of large performance overheads and large power consumption overheads caused by implementation of refreshing by a unified cycle is solved. A method, device and system for refreshing a dynamic random access memory (DRAM). The method comprises: acquiring an address of a refreshing unit in a DRAM and refreshing information of the refreshing unit, the refreshing unit being a storage space used for implementing refreshing once in the DRAM, and the refreshing information of the refreshing unit comprising a refreshing cycle of the refreshing unit; and encapsulating the address of the refreshing unit and the refreshing information of the refreshing unit into a DRAM access request, and writing the address of the refreshing unit and the refreshing information of the refreshing unit into a refreshing data space (310) through the DRAM access request, the refreshing data space (310) being a storage space preset in the DRAM and used for storing the address of at least one refreshing unit in the DRAM and the refreshing information of the at least one refreshing unit. By means of the solution, specified refreshing can be implemented according to the refreshing information of the refreshing unit, so the problem of large performance overheads and large power consumption overheads caused by implementation of refreshing by a unified cycle is solved. A mobile payment security protection method, apparatus and cloud server, and a mobile terminal secure payment method and apparatus. The mobile payment security protection method comprises: when a triggering event of a mobile terminal payment client is detected, acquiring the feature information of the payment client, wherein said feature information refers to unique ID information of the payment client (S102); implementing matching of the acquired feature information and feature information in a preset white list to obtain matching results, wherein said white list comprises feature information of mobile terminal payment clients which can securely complete payment operations (S104); on the basis of the matching results, determining whether the payment client is a malicious client (S106); and, on the basis of the determining results, processing the payment client (S108). The security of payment clients on a mobile terminal can be improved, enhancing protection against malicious attacks such as viruses and Trojans, and thereby providing a secure, clean mobile payment environment for the user.